Conveyer



April 1945. A. B5 L. SINDEN 2,372,798

CONVEYER Filed Jan. 19, 1942 Patented Apr. 3, 1945 CONVEYER Alfred DeLos Sinden, Aurora, 111., assignor to Redler Conveyor Company, Quincy,Mass., a corporation of Massachusetts Original application March 2,1940, Serial No. 321,968, now Patent No. 2,281,026, dated April 28,1942. Divided and this application January 19, 1942, Serial No. 427,308

1 Claim.

This invention relates to a conveyer for conveying flowable solidmaterial.

The object of the invention is to provide a novel and improvedconstruction of conveyer which finds particular use in conveying lumpymaterial and with which the liability of jamming the conveyer andinjuring the component parts thereof is reduced to a minimum.

With this general object in view, and such others as may hereinafterappear, the invention consists in the conveyer and in the variousstructures, arrangements and combinations of parts hereinafter describedand particularly defined in the claim at the end of this specification.

In the drawing, Fig. 1 is a more or less diagrammatic view in sideelevation illustrating a conveyer embodying the present invention; andFig. 2 is an enlarged detail in longitudinal section of a dischargeportion of the conveyer shown in Fig. 1.

Prior to the present invention substantial difficulty ha beenencountered in handling oertain types of lumpy flowable material incon-- veyers of the type embodying an elongated casing and a conveyingelement having spaced flights adapted to be drawn therethrough. Amongsuch material may be mentioned crushed stone, coal, and other materialcontaining lumps of a hardness such that, when wedged between theflights of the conveyer and the sharp edge of the conveyer casingforming the rear edge of the inlet or discharge opening therein, theflights oftentimes become broken or bent, or the conveyer stalled andrendered inoperative. The present invention contemplates novel andimproved structures of the conveyer at the inlet and discharge sectionsthereof and difierent features of the invention find particular use inconveyers of the open flight type such as form the subject matter of theRedler United States Reissue Patent No. 18,445, while other features ofthe invention are particularly useful in connection with conveyers ofthe solid flight type, such for example as illustrated in the UnitedStates patent to White, No. 2,066,866.

Referring to the drawing, at the discharge opening 38 provision is madefor preventing the lumpy material being conveyed by the solid flights ofthe lower run of the conveying element from being suddenly forcedagainst the sharp edge 40 of the discharge opening 38 in the conveyercasing. Under ordinary operating conditions, the material is dischargedwithout trouble, but in those instances where the outlet becomes choked,as in stoker feeds, liability exists of a hard lump becoming jammedbetween a flight and the rear edge 40 of the discharge opening. Toprevent this jamming, I preferably provide a guide member 42 which isinclined downwardly from the discharge, edge 40 in the mannerillustrated and serves to cause any material being discharged thereon toride up gradually as the conveyer flights continue to move past the edge40 to be again returned onto the upper run of the conveyer and againdelivered through the inlet down onto the lower run. In some instances,this discharge structure finds use in conveyers embodying open flights.

This application is a division of my co-pending application, Serial No.321,968, filed March 2, 1940. and issued April 28, 1942, as Patent No.2,281,026.

Having thus described the invention, what is with an inlet and with anoutlet from the bottom wall thereof, said outlet forming with the bottomwall sharp rectangular corners, an endless conveyer member adapted to bedrawn through the casing with portions thereof disposed in proximity tothe bottom walls and to a point beyond the discharge outlet, and a flatplate-like guide mem- ALFRED DE LOS SIN'DEN.

